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Electric & Electronic Solution

Expansion of sales by developing high value products for warship(navy and maritime police).

Wide Range of the Product Lines from Warships and Merchant Ships to Land Division
Based on rich experiences and the best technologies of the industry, KOC Electric possesses a wide range of the product line and entered the market of domestic special ships, commercial ships. Through successful international expansion, KOC Electric has become a global company, and based on its excellent technology, we internationally imprinted a positive reputation as a Korean company.

LCL FILTER integrated isolation transformer
Based on KOC Electric's technology, we provide stable power by suppressing transient voltages and harmonic currents generated in the power conversion system.

• Harmonics generated by various causes, such as those generated by the rotors of power conversion devices (rectifiers, inverters, etc.), have a continuous impact on the devices we use, causing them to malfunction, generate heat, noise, and burn out. In addition, devices such as transformers generate load losses, which shortens the service life, so stable power quality is maintained by designing the LCL filter through output analysis.
• As the previously used LC FILTER and isolation transformer were installed as separate equipment, the problem of overvoltage generation and harmonic reduction performance due to impedance mismatch, or problems with propulsion motor control were corrected, and an integrated isolation transformer including an LCL filter was created. was developed to provide more stable suppression performance.
• KOC's integrated LCL FILTER has its own cooling effect on heat generation, and is efficient in terms of space when installed on a ship by integrating the previously separately used LC FILTER and front-end transformer.


Main Specifications

Main Specifications
Output 1~3MVA
Efficiency Above 98%
Output Voltage 6.6kV ± 4%
Output Voltage THD Below 4%
Temperature Rise Below 95K
Voltage Endurance Low voltage section 3kV or higher / High voltage section 20kV or higher
Shock voltage durability Above 40kV
Induced voltage durability Above 13.2kV
Insulation resistance performance Above 20MΩ
Enclosure IP Grade IP 44